    <SEC-DOCUMENT>0001193125-24-068645-index.html : 20240315
    <SEC-HEADER>0001193125-24-068645.hdr.sgml : 20240315
    <ACCEPTANCE-DATETIME>20240315085632
    ACCESSION NUMBER:		0001193125-24-068645
    CONFORMED SUBMISSION TYPE:	ARS
    PUBLIC DOCUMENT COUNT:		1
    CONFORMED PERIOD OF REPORT:	20231231
    FILED AS OF DATE:		20240315
    DATE AS OF CHANGE:		20240315
    EFFECTIVENESS DATE:		20240315

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			GATX CORP
    		CENTRAL INDEX KEY:			0000040211
    		STANDARD INDUSTRIAL CLASSIFICATION:	TRANSPORTATION SERVICES [4700]
    		ORGANIZATION NAME:           	01 Energy & Transportation
    		IRS NUMBER:				361124040
    		STATE OF INCORPORATION:			NY
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		ARS
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-02328
    		FILM NUMBER:		24752653

    	BUSINESS ADDRESS:
    		STREET 1:		233 SOUTH WACKER DRIVE
    		CITY:			CHICAGO
    		STATE:			IL
    		ZIP:			60606-7147
    		BUSINESS PHONE:		3126216200

    	MAIL ADDRESS:
    		STREET 1:		233 SOUTH WACKER DRIVE
    		CITY:			CHICAGO
    		STATE:			IL
    		ZIP:			60606-7147

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	GENERAL AMERICAN TRANSPORTATION CORP
    		DATE OF NAME CHANGE:	19750722
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>ARS
    <SEQUENCE>1
    <FILENAME>d394677dars.pdf
    <DESCRIPTION>ARS
    <TEXT>
    Document 1 - file: d394677dars.pdf

    </DOCUMENT>
    </SEC-DOCUMENT>